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BeerBoozeBiscuits t1_j0zc9de wrote

Reply to comment by Jessie101gaming in Anyone know what the figure means next to the # of cars? It’s new, I fear change. by 858

How do they assess crowding levels?

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hemlockone t1_j0znil7 wrote

I don't know if this press release changed, but according to them

>Metrorail crowding predictions will also be available in our data feedto third-party transit and mapping applications, however the predictions are based on historical crowding data, not real-time.

https://www.wmata.com/about/developers/crowding.cfm

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Oaktownbeeast t1_j0zdqsz wrote

There's a machine that takes your money at the entrance and counts how many people enter a station.

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born_to_kvetch t1_j0zeiqt wrote

Bold of you to assume the number of people entering the station is the same as the number of people paying.

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BeerBoozeBiscuits t1_j0ze042 wrote

Yes, but how does it estimate which train you're on, if there are multiple trains going through that station?

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Oaktownbeeast t1_j0zfjgh wrote

Likely an algorithm that calculates expected percentages, based on past ridership. They know that a percentage of riders entering the station go in a certain direction or train. Or maybe even easier, the train conductor communicates that there are lot of people on the train.

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JohnJohnston t1_j0zyx3p wrote

It records which station you exit and transmits that data to the past to calculate the ridership on the train.

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